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Intel(R) PRO/Wireless 2915ABG Driver for Linux in support of: | ||
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Intel(R) PRO/Wireless 2200BG Network Connection | ||
Intel(R) PRO/Wireless 2915ABG Network Connection | ||
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Note: The Intel(R) PRO/Wireless 2915ABG Driver for Linux and Intel(R) | ||
PRO/Wireless 2200BG Driver for Linux is a unified driver that works on | ||
both hardware adapters listed above. In this document the Intel(R) | ||
PRO/Wireless 2915ABG Driver for Linux will be used to reference the | ||
unified driver. | ||
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Copyright (C) 2004-2005, Intel Corporation | ||
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README.ipw2200 | ||
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Version: 1.0.0 | ||
Date : January 31, 2005 | ||
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Index | ||
----------------------------------------------- | ||
1. Introduction | ||
1.1. Overview of features | ||
1.2. Module parameters | ||
1.3. Wireless Extension Private Methods | ||
1.4. Sysfs Helper Files | ||
2. About the Version Numbers | ||
3. Support | ||
4. License | ||
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1. Introduction | ||
----------------------------------------------- | ||
The following sections attempt to provide a brief introduction to using | ||
the Intel(R) PRO/Wireless 2915ABG Driver for Linux. | ||
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This document is not meant to be a comprehensive manual on | ||
understanding or using wireless technologies, but should be sufficient | ||
to get you moving without wires on Linux. | ||
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For information on building and installing the driver, see the INSTALL | ||
file. | ||
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1.1. Overview of Features | ||
----------------------------------------------- | ||
The current release (1.0.0) supports the following features: | ||
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+ BSS mode (Infrastructure, Managed) | ||
+ IBSS mode (Ad-Hoc) | ||
+ WEP (OPEN and SHARED KEY mode) | ||
+ 802.1x EAP via wpa_supplicant and xsupplicant | ||
+ Wireless Extension support | ||
+ Full B and G rate support (2200 and 2915) | ||
+ Full A rate support (2915 only) | ||
+ Transmit power control | ||
+ S state support (ACPI suspend/resume) | ||
+ long/short preamble support | ||
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1.2. Command Line Parameters | ||
----------------------------------------------- | ||
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Like many modules used in the Linux kernel, the Intel(R) PRO/Wireless | ||
2915ABG Driver for Linux allows certain configuration options to be | ||
provided as module parameters. The most common way to specify a module | ||
parameter is via the command line. | ||
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The general form is: | ||
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% modprobe ipw2200 parameter=value | ||
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Where the supported parameter are: | ||
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associate | ||
Set to 0 to disable the auto scan-and-associate functionality of the | ||
driver. If disabled, the driver will not attempt to scan | ||
for and associate to a network until it has been configured with | ||
one or more properties for the target network, for example configuring | ||
the network SSID. Default is 1 (auto-associate) | ||
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Example: % modprobe ipw2200 associate=0 | ||
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auto_create | ||
Set to 0 to disable the auto creation of an Ad-Hoc network | ||
matching the channel and network name parameters provided. | ||
Default is 1. | ||
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channel | ||
channel number for association. The normal method for setting | ||
the channel would be to use the standard wireless tools | ||
(i.e. `iwconfig eth1 channel 10`), but it is useful sometimes | ||
to set this while debugging. Channel 0 means 'ANY' | ||
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debug | ||
If using a debug build, this is used to control the amount of debug | ||
info is logged. See the 'dval' and 'load' script for more info on | ||
how to use this (the dval and load scripts are provided as part | ||
of the ipw2200 development snapshot releases available from the | ||
SourceForge project at http://ipw2200.sf.net) | ||
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mode | ||
Can be used to set the default mode of the adapter. | ||
0 = Managed, 1 = Ad-Hoc | ||
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1.3. Wireless Extension Private Methods | ||
----------------------------------------------- | ||
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As an interface designed to handle generic hardware, there are certain | ||
capabilities not exposed through the normal Wireless Tool interface. As | ||
such, a provision is provided for a driver to declare custom, or | ||
private, methods. The Intel(R) PRO/Wireless 2915ABG Driver for Linux | ||
defines several of these to configure various settings. | ||
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The general form of using the private wireless methods is: | ||
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% iwpriv $IFNAME method parameters | ||
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Where $IFNAME is the interface name the device is registered with | ||
(typically eth1, customized via one of the various network interface | ||
name managers, such as ifrename) | ||
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The supported private methods are: | ||
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get_mode | ||
Can be used to report out which IEEE mode the driver is | ||
configured to support. Example: | ||
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% iwpriv eth1 get_mode | ||
eth1 get_mode:802.11bg (6) | ||
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set_mode | ||
Can be used to configure which IEEE mode the driver will | ||
support. | ||
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Usage: | ||
% iwpriv eth1 set_mode {mode} | ||
Where {mode} is a number in the range 1-7: | ||
1 802.11a (2915 only) | ||
2 802.11b | ||
3 802.11ab (2915 only) | ||
4 802.11g | ||
5 802.11ag (2915 only) | ||
6 802.11bg | ||
7 802.11abg (2915 only) | ||
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get_preamble | ||
Can be used to report configuration of preamble length. | ||
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set_preamble | ||
Can be used to set the configuration of preamble length: | ||
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Usage: | ||
% iwpriv eth1 set_preamble {mode} | ||
Where {mode} is one of: | ||
1 Long preamble only | ||
0 Auto (long or short based on connection) | ||
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1.4. Sysfs Helper Files: | ||
----------------------------------------------- | ||
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The Linux kernel provides a pseudo file system that can be used to | ||
access various components of the operating system. The Intel(R) | ||
PRO/Wireless 2915ABG Driver for Linux exposes several configuration | ||
parameters through this mechanism. | ||
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An entry in the sysfs can support reading and/or writing. You can | ||
typically query the contents of a sysfs entry through the use of cat, | ||
and can set the contents via echo. For example: | ||
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% cat /sys/bus/pci/drivers/ipw2200/debug_level | ||
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Will report the current debug level of the driver's logging subsystem | ||
(only available if CONFIG_IPW_DEBUG was configured when the driver was | ||
built). | ||
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You can set the debug level via: | ||
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% echo $VALUE > /sys/bus/pci/drivers/ipw2200/debug_level | ||
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Where $VALUE would be a number in the case of this sysfs entry. The | ||
input to sysfs files does not have to be a number. For example, the | ||
firmware loader used by hotplug utilizes sysfs entries for transferring | ||
the firmware image from user space into the driver. | ||
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The Intel(R) PRO/Wireless 2915ABG Driver for Linux exposes sysfs entries | ||
at two levels -- driver level, which apply to all instances of the | ||
driver (in the event that there are more than one device installed) and | ||
device level, which applies only to the single specific instance. | ||
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1.4.1 Driver Level Sysfs Helper Files | ||
----------------------------------------------- | ||
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For the driver level files, look in /sys/bus/pci/drivers/ipw2200/ | ||
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debug_level | ||
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This controls the same global as the 'debug' module parameter | ||
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1.4.2 Device Level Sysfs Helper Files | ||
----------------------------------------------- | ||
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For the device level files, look in | ||
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/sys/bus/pci/drivers/ipw2200/{PCI-ID}/ | ||
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For example: | ||
/sys/bus/pci/drivers/ipw2200/0000:02:01.0 | ||
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For the device level files, see /sys/bus/pci/[drivers/ipw2200: | ||
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rf_kill | ||
read - | ||
0 = RF kill not enabled (radio on) | ||
1 = SW based RF kill active (radio off) | ||
2 = HW based RF kill active (radio off) | ||
3 = Both HW and SW RF kill active (radio off) | ||
write - | ||
0 = If SW based RF kill active, turn the radio back on | ||
1 = If radio is on, activate SW based RF kill | ||
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NOTE: If you enable the SW based RF kill and then toggle the HW | ||
based RF kill from ON -> OFF -> ON, the radio will NOT come back on | ||
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ucode | ||
read-only access to the ucode version number | ||
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2. About the Version Numbers | ||
----------------------------------------------- | ||
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Due to the nature of open source development projects, there are | ||
frequently changes being incorporated that have not gone through | ||
a complete validation process. These changes are incorporated into | ||
development snapshot releases. | ||
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Releases are numbered with a three level scheme: | ||
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major.minor.development | ||
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Any version where the 'development' portion is 0 (for example | ||
1.0.0, 1.1.0, etc.) indicates a stable version that will be made | ||
available for kernel inclusion. | ||
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Any version where the 'development' portion is not a 0 (for | ||
example 1.0.1, 1.1.5, etc.) indicates a development version that is | ||
being made available for testing and cutting edge users. The stability | ||
and functionality of the development releases are not know. We make | ||
efforts to try and keep all snapshots reasonably stable, but due to the | ||
frequency of their release, and the desire to get those releases | ||
available as quickly as possible, unknown anomalies should be expected. | ||
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The major version number will be incremented when significant changes | ||
are made to the driver. Currently, there are no major changes planned. | ||
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3. Support | ||
----------------------------------------------- | ||
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For installation support of the 1.0.0 version, you can contact | ||
http://supportmail.intel.com, or you can use the open source project | ||
support. | ||
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For general information and support, go to: | ||
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http://ipw2200.sf.net/ | ||
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4. License | ||
----------------------------------------------- | ||
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Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved. | ||
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This program is free software; you can redistribute it and/or modify it | ||
under the terms of the GNU General Public License version 2 as | ||
published by the Free Software Foundation. | ||
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This program is distributed in the hope that it will be useful, but WITHOUT | ||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
more details. | ||
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You should have received a copy of the GNU General Public License along with | ||
this program; if not, write to the Free Software Foundation, Inc., 59 | ||
Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
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The full GNU General Public License is included in this distribution in the | ||
file called LICENSE. | ||
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Contact Information: | ||
James P. Ketrenos <ipw2100-admin@linux.intel.com> | ||
Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | ||
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